vectors-m

Related Questions

• If the vectors $a\mathbf{i}+2\mathbf{j}+3\mathbf{k}$ and $-\mathbf{i}+5\mathbf{j}+a\mathbf{k}$ are perpendicular to each other, then $a=$

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• The projection of the vector $2\mathbf{i}+\mathbf{j}-3\mathbf{k}$ on the vector $\mathbf{i}-2\mathbf{j}+\mathbf{k}$is_______

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• If vector $\mathbf{a}=2\mathbf{i}-3\mathbf{j}+6\mathbf{k}$ and vector $\mathbf{b}=-2\mathbf{i}+2\mathbf{j}-\mathbf{k},$ then $\frac{\text{Projection of vector }\mathbf{a}\text{ on vector }\mathbf{b}}{\text{Projection of vector }\mathbf{b}\text{ on vector }\mathbf{a}}=$

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• If $\mathbf{a}=2\mathbf{i}+3\mathbf{j}-5\mathbf{k},\,\,\mathbf{b}=m\mathbf{i}+n\mathbf{j}+12\mathbf{k}$ and $\mathbf{a}\times \mathbf{b}=0,$ then $(m,\,\,n)=$

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• If G and G' be the centroids of the triangles ABC and $A'B'C'$ respectively, then $\overrightarrow{AA}'+\overrightarrow{BB'}+\overrightarrow{CC}'=$

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